Unit 3 Sea Exploration 单元词汇学案-2022-2023学年高中英语人教版（2019）选择性必修第四册

2019新人教高中英语选择性必修四 Unit3 Sea Exploration单元词汇学案 学习目标： 1.To get a better understanding of the usages of such important words and expressions as set sail,extend,negotiate,withdraw,bond,in hand,profession,mixture,applaud,mercy,possession,etc. 2.To learn to use the important words and expressions in real contexts. Part I Revision Describe the sea exploration in Chinese history according to the time axis. in the 8th century today in ancient in the Ming in the times Dynasty future Part II Self-directed study-word formation Find out the relative forms of the following words and at the same time,make out their meanings by referring to the dictionary or reference books. 1.profession-adj. 2.mixture-v. 3.coverage-v. 4.applaud-n. 5.withdraw-n. 6.extend-n. adj. 7.politics-adj. 8.negotiate-n. 9.murder-n. 10.possession-v. 11.mercy-adj. Part III The usages of important words and phrases 1.set sail启航；开航 【教材回顾】 However,merchants and explorers from the East set sail from east to west many years before Columbus first did.然而，在哥伦布首次启航之前许多年，东方的商人和探险家就已经 开始自东向西航行。 【词汇延伸】 We set sail at 2 pm tomorrow. 我们明天下午2点起航。 Christopher Columbus set sail for the New World in Spain. 克里斯托弗哥伦布从西班牙启航前往新大陆。 Who was the first person to sail across the Pacific? 谁是第一个横渡太平洋的人？ The ship rounded the Cape of Good Hope and sailed into the Atlantic. 货轮绕过好望角驶入大西洋。 【归纳总结】 sail n.帆vi.航行 set sail for=sail for sail across sail into/out of 【考点运用】 翻译句子 ①前往南极的中国“雪龙号”破冰船已经返回上海。 ②日出后不久，探险家开始向非洲启航。 2.extend vt.扩展；使伸长；延长vi.延伸：延长 【教材回顾】 A trading route across the sea was also extended along the coasts of the Indian Ocean, centred around Ceylon(now Sri Lanka).以锡兰（今斯里兰卡）为中心的一条横跨海洋的贸易路 线沿印度洋海岸延伸。 【词汇延伸】 We'd like to extend a warm welcome to our foreign friends. 我们热烈欢迎外国朋友。 In the South,the hot weather maybe extended into October. 在南方，炎热天气可能一直持续到十月。 The city council has decided to extend the road to the new town. 市政会已决定把公路延长到这个新城镇。 He's been granted an extension of the contract for another year. 他的合同获得延期一年。 【归纳总结】 extend into_ extend